St.Jon Pet Care (Virbac) CSJ11201 Petromalt Fish for Cats, 2-Ounce

Petromalt Hairball Relief - Fish Flavor is an intestinal lubricant that helps relieve constipation dry cough and occasional vomiting associated with hairballs. It is also a gentle laxative against the formation of hairballs. Petromalt is the original hairball relief. It is safe and effective for cats and kittens over 4 weeks of age.